At the time I felt that it was not well defined – even a bit artificial.
But towards the end of 2009 I discovered this article by John Morrison:
This clearly positions the test architect in terms of roles and responsibilities, as well as the relation to the software architect.
“Software Architect” on the other hand, is a term that is widely used and accepted in the software development community.
In this regard I am aligned with Martin Fowler’s thinking and ideas as defined in this article:Who Needs an Architect? by Martin Fowler